Nebius (NBIS)

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-06-02 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: Nebius Group N.V. (NBIS) CIK: 0001513845 --- Reporting Owner --- Name: Boroditsky Marc CIK: 0001779922 Role: Officer (Chief Revenue Officer) --- Non-Derivative Transactions --- [Transaction #1] Security: Class A Shares Date: 2026-06-02 | Code: S (Open market sale) Shares: -10,776 | Price: $276.20 Total Value: $2,976,333.36 Shares Owned After: 26,886 | Ownership: D (Direct) Footnotes: [F1] The shares were sold upon the vesting of restricted share units solely to cover estimated withholding taxes, pursuant to automatic sale instructions included in the relevant Restricted Share Unit Agreement. The sale was not a discretionary trade by the Reporting Person. --- Footnotes (Complete Index) --- F1: The shares were sold upon the vesting of restricted share units solely to cover estimated withholding taxes, pursuant to automatic sale instructions included in the relevant Restricted Share Unit Agreement. The sale was not a discretionary trade by the Reporting Person. --- Signature --- /s/ /s/ Anna Akimova, attorney-in-fact for Mr. Boroditsky (2026-06-03)